Implement persistent drafts functionality

* Created a drafts modal to display/restore/delete drafts
* Created a Draft model to support storing draft data in localstorage
* Removed existing restore-draft functionality
* Added casper and node tests for drafts functionality

Fixes #1717.

.eslintrc.json

@@ -94,7 +94,8 @@
         "unread_ui": false,
         "user_events": false,
         "Plotly": false,
-        "emoji_codes": false
+        "emoji_codes": false,
+        "drafts": false
     },
     "rules": {
         "no-restricted-syntax": 0,

frontend_tests/casper_tests/14-drafts.js

@@ -0,0 +1,209 @@
+var common = require('../casper_lib/common.js').common;
+
+function waitWhileDraftsVisible(then) {
+    casper.waitFor(function () {
+        return casper.evaluate(function () {
+            return $("#draft_overlay").length === 0 ||
+                   $("#draft_overlay").css("opacity") === "0";
+        });
+    }, then);
+}
+
+function waitUntilDraftsVisible(then) {
+    casper.waitFor(function () {
+        return casper.evaluate(function () {
+            return $("#draft_overlay").length === 1 &&
+                   $("#draft_overlay").css("opacity") === "1";
+        });
+    }, then);
+}
+
+common.start_and_log_in();
+
+casper.then(function () {
+    casper.test.info('Drafts page');
+
+    casper.waitUntilVisible('.drafts-link', function () {
+        casper.click('.drafts-link');
+    });
+});
+
+casper.then(function () {
+    casper.test.assertUrlMatch(/^http:\/\/[^/]+\/#drafts/,
+                               'URL suggests we are on drafts page');
+    waitUntilDraftsVisible(function () {
+        casper.test.assertExists('#draft_overlay', 'Drafts page is active');
+        casper.test.assertSelectorHasText('.no-drafts', 'No Drafts.');
+    });
+});
+
+
+casper.then(function () {
+    casper.click('#draft_overlay .exit');
+    waitWhileDraftsVisible();
+});
+
+casper.then(function () {
+    casper.test.info('Creating Stream Message Draft');
+    casper.click('body');
+    casper.page.sendEvent('keypress', "c");
+    casper.waitUntilVisible('#stream-message', function () {
+        casper.test.info('Creating Private Message Draft');
+        casper.fill('form#send_message_form', {
+            stream: 'all',
+            subject: 'tests',
+            content: 'Test Stream Message',
+        }, false);
+        casper.click("#compose_close");
+    });
+});
+
+casper.then(function () {
+    casper.test.info('Creating Private Message Draft');
+    casper.click('body');
+    casper.page.sendEvent('keypress', "C");
+    casper.waitUntilVisible('#private-message', function () {
+        casper.fill('form#send_message_form', {
+            recipient: 'cordelia@zulip.com, hamlet@zulip.com',
+            content: 'Test Private Message',
+        }, false);
+        casper.click("#compose_close");
+    });
+});
+
+casper.then(function () {
+    casper.waitUntilVisible('.drafts-link', function () {
+        casper.click('.drafts-link');
+    });
+});
+
+casper.then(function () {
+    waitUntilDraftsVisible(function () {
+        casper.test.assertElementCount('.draft-row', 2, 'Drafts loaded');
+
+        casper.test.assertSelectorHasText('.draft-row .message_header_stream .stream_label', 'all');
+        casper.test.assertSelectorHasText('.draft-row .message_header_stream .stream_topic', 'tests');
+        casper.test.assertTextExists('Test Stream Message', 'Stream draft contains message content');
+
+        casper.test.assertSelectorHasText('.draft-row .message_header_private_message .stream_label',
+                                          'You and Cordelia Lear, King Hamlet');
+        casper.test.assertTextExists('Test Private Message', 'Private draft contains message content');
+    });
+});
+
+casper.then(function () {
+    casper.test.info('Restoring Stream Message Draft');
+    casper.click("#drafts_table .message_row:not(.private-message) .restore-draft");
+    waitWhileDraftsVisible(function () {
+        casper.test.assertVisible('#stream-message', 'Stream Message Box Restored');
+        common.check_form('form#send_message_form', {
+            stream: 'all',
+            subject: 'tests',
+            content: 'Test Stream Message',
+        }, "Stream message box filled with draft content");
+    });
+});
+
+casper.then(function () {
+    casper.test.info('Editing Stream Message Draft');
+    casper.fill('form#send_message_form', {
+        stream: 'all',
+        subject: 'tests',
+        content: 'Updated Stream Message',
+    }, false);
+    casper.click("#compose_close");
+});
+
+casper.then(function () {
+    casper.waitUntilVisible('.drafts-link', function () {
+        casper.click('.drafts-link');
+    });
+});
+
+casper.then(function () {
+    waitUntilDraftsVisible(function () {
+        casper.test.assertSelectorHasText('.draft-row .message_header_stream .stream_label', 'all');
+        casper.test.assertSelectorHasText('.draft-row .message_header_stream .stream_topic', 'tests');
+        casper.test.assertTextExists('Updated Stream Message', 'Stream draft contains message content');
+    });
+});
+
+casper.then(function () {
+    casper.test.info('Restoring Private Message Draft');
+    casper.click("#drafts_table .message_row.private-message .restore-draft");
+    waitWhileDraftsVisible(function () {
+        casper.test.assertVisible('#private-message', 'Private Message Box Restored');
+        common.check_form('form#send_message_form', {
+            recipient: 'cordelia@zulip.com, hamlet@zulip.com',
+            content: 'Test Private Message',
+        }, "Private message box filled with draft content");
+    });
+});
+
+casper.then(function () {
+    casper.click("#compose_close");
+    casper.waitUntilVisible('.drafts-link', function () {
+        casper.click('.drafts-link');
+    });
+});
+
+casper.then(function () {
+    casper.test.info('Deleting Draft');
+    casper.click("#drafts_table .message_row.private-message .delete-draft");
+    casper.test.assertElementCount('.draft-row', 1, 'Draft deleted');
+    casper.test.assertDoesntExist("#drafts_table .message_row.private-message");
+});
+
+casper.then(function () {
+    casper.test.info('Saving Draft by Reloading');
+    casper.click('#draft_overlay .exit');
+    waitWhileDraftsVisible(function () {
+        casper.click('body');
+        casper.page.sendEvent('keypress', "C");
+        casper.waitUntilVisible('#private-message', function () {
+            casper.fill('form#send_message_form', {
+                recipient: 'cordelia@zulip.com',
+                content: 'Test Private Message',
+            }, false);
+            casper.reload();
+        });
+    });
+});
+
+casper.then(function () {
+    casper.waitUntilVisible('.drafts-link', function () {
+        casper.click('.drafts-link');
+    });
+    waitUntilDraftsVisible(function () {
+        casper.test.assertElementCount('.draft-row', 2, 'Drafts loaded');
+        casper.test.assertSelectorHasText('.draft-row .message_header_private_message .stream_label',
+                                          'You and Cordelia Lear');
+        casper.test.assertTextExists('Test Private Message');
+    });
+});
+
+casper.then(function () {
+    casper.test.info('Deleting Draft after Sending Message');
+    casper.click("#drafts_table .message_row.private-message .restore-draft");
+    waitWhileDraftsVisible(function () {
+        casper.test.assertVisible('#private-message');
+        casper.click('#compose-send-button');
+    });
+});
+
+casper.then(function () {
+    // This tests the second drafts link in the compose area
+    casper.waitUntilVisible('.compose_table .drafts-link', function () {
+        casper.click('.compose_table .drafts-link');
+    });
+    waitUntilDraftsVisible(function () {
+        casper.test.assertElementCount('.draft-row', 1, 'Drafts loaded');
+        casper.test.assertDoesntExist("#drafts_table .message_row.private-message");
+    });
+});
+
+common.then_log_out();
+
+casper.run(function () {
+    casper.test.done();
+});

frontend_tests/node_tests/drafts.js

@@ -0,0 +1,95 @@
+global.stub_out_jquery();
+
+add_dependencies({
+    localstorage: 'js/localstorage',
+    drafts: 'js/drafts',
+});
+
+var ls_container = {};
+set_global('localStorage', {
+    getItem: function (key) {
+        return ls_container[key];
+    },
+    setItem: function (key, val) {
+        ls_container[key] = val;
+    },
+    removeItem: function (key) {
+        delete ls_container[key];
+    },
+    clear: function () {
+        ls_container = {};
+    },
+});
+
+function stub_timestamp(model, timestamp, func) {
+    var original_func = model.getTimestamp;
+    model.getTimestamp = function () {
+        return timestamp;
+    };
+    func();
+    model.getTimestamp = original_func;
+}
+
+var draft_1 = {
+    stream: "stream",
+    subject: "topic",
+    type: "stream",
+    content: "Test Stream Message",
+};
+var draft_2 = {
+    private_message_recipient: "aaron@zulip.com",
+    type: "private",
+    content: "Test Private Message",
+};
+
+(function test_draft_model() {
+    var draft_model = drafts.draft_model;
+    var ls = localstorage();
+
+    localStorage.clear();
+    (function test_get() {
+        var expected = { id1: draft_1, id2: draft_2 };
+        ls.set("drafts", expected);
+
+        assert.deepEqual(draft_model.get(), expected);
+    }());
+
+    localStorage.clear();
+    (function test_get() {
+        ls.set("drafts", { id1: draft_1 });
+
+        assert.deepEqual(draft_model.getDraft("id1"), draft_1);
+        assert.equal(draft_model.getDraft("id2"), false);
+    }());
+
+    localStorage.clear();
+    (function test_addDraft() {
+         stub_timestamp(draft_model, 1, function () {
+             var expected = draft_1;
+             expected.updatedAt = 1;
+             var id = draft_model.addDraft(draft_1);
+
+             assert.deepEqual(ls.get("drafts")[id], expected);
+         });
+    }());
+
+    localStorage.clear();
+    (function test_editDraft() {
+         stub_timestamp(draft_model, 2, function () {
+             ls.set("drafts", { id1: draft_1 } );
+             var expected = draft_2;
+             expected.updatedAt = 2;
+             draft_model.editDraft("id1", draft_2);
+
+             assert.deepEqual(ls.get("drafts").id1, expected);
+         });
+    }());
+
+    localStorage.clear();
+    (function test_deleteDraft() {
+         ls.set("drafts", { id1: draft_1 } );
+         draft_model.deleteDraft("id1");
+
+         assert.deepEqual(ls.get("drafts"), {});
+    }());
+}());

frontend_tests/node_tests/templates.js

@@ -393,6 +393,51 @@ function render(template_name, args) {
     assert.equal(a.text(), "Narrow to here");
 }());
 
+(function draft_table_body() {
+    var args = {
+        drafts: [
+            {
+                draft_id: '1',
+                is_stream: true,
+                stream: 'all',
+                stream_color: '#FF0000',  // rgb(255, 0, 0)
+                topic: 'tests',
+                content: 'Public draft',
+            },
+            {
+                draft_id: '2',
+                is_stream: false,
+                recipients: 'Jordan, Michael',
+                content: 'Private draft',
+            },
+        ],
+    };
+
+    var html = '';
+    html += '<div id="drafts_table">';
+    html += render('draft_table_body', args);
+    html += '</div>';
+
+    global.write_handlebars_output("draft_table_body", html);
+
+    var row_1 = $(html).find(".draft-row[data-draft-id='1']");
+    assert.equal(row_1.find(".stream_label").text().trim(), "all");
+    assert.equal(row_1.find(".stream_label").css("background"), "rgb(255, 0, 0)");
+    assert.equal(row_1.find(".stream_topic").text().trim(), "tests");
+    assert(!row_1.find(".message_row").hasClass("private-message"));
+    assert.equal(row_1.find(".messagebox").css("box-shadow"),
+                 "inset 2px 0px 0px 0px #FF0000, -1px 0px 0px 0px #FF0000");
+    assert.equal(row_1.find(".message_content").text().trim(), "Public draft");
+
+    var row_2 = $(html).find(".draft-row[data-draft-id='2']");
+    assert.equal(row_2.find(".stream_label").text().trim(), "You and Jordan, Michael");
+    assert(row_2.find(".message_row").hasClass("private-message"));
+    assert.equal(row_2.find(".messagebox").css("box-shadow"),
+                 "inset 2px 0px 0px 0px #444444, -1px 0px 0px 0px #444444");
+    assert.equal(row_2.find(".message_content").text().trim(), "Private draft");
+}());
+
+
 (function email_address_hint() {
     var html = render('email_address_hint');
     global.write_handlebars_output("email_address_hint", html);

static/js/click_handlers.js

@@ -268,6 +268,18 @@ $(function () {
             subs.close();
         }
     });
+
+    $("#drafts_table").on("click", ".exit, #draft_overlay", function (e) {
+        if (meta.focusing) {
+            meta.focusing = false;
+            return;
+        }
+
+        if ($(e.target).is(".exit, .exit-sign, #draft_overlay, #draft_overlay > .flex")) {
+            drafts.close();
+        }
+    });
+
     // HOME
 
     // Capture both the left-sidebar Home click and the tab breadcrumb Home

static/js/compose.js

@@ -15,8 +15,6 @@ var user_acknowledged_all_everyone;
 
 exports.all_everyone_warn_threshold = 15;
 
-var message_snapshot;
-
 var uploads_domain = document.location.protocol + '//' + document.location.host;
 var uploads_path = '/user_uploads';
 var uploads_re = new RegExp("\\]\\(" + uploads_domain + "(" + uploads_path + "[^\\)]+)\\)", 'g');
@@ -116,11 +114,11 @@ function clear_invites() {
 }
 
 function clear_box() {
-    exports.snapshot_message();
     clear_invites();
     clear_all_everyone_warnings();
     user_acknowledged_all_everyone = undefined;
     $("#compose").find('input[type=text], textarea').val('');
+    $("#new_message_content").removeData("draft-id");
     exports.autosize_textarea();
     $("#send-status").hide(0);
 }
@@ -131,9 +129,6 @@ function clear_preview_area() {
     $("#preview_message_area").hide();
     $("#preview_content").empty();
     $("#markdown_preview").show();
-    if (message_snapshot !== undefined) {
-        $('#restore-draft').show();
-    }
 }
 
 function hide_box() {
@@ -307,9 +302,6 @@ exports.cancel = function () {
     notifications.clear_compose_notifications();
     abort_xhr();
     is_composing_message = false;
-    if (message_snapshot !== undefined) {
-        $('#restore-draft').show();
-    }
     $(document).trigger($.Event('compose_canceled.zulip'));
 };
 
@@ -355,40 +347,10 @@ exports.snapshot_message = function (message) {
     }
 
     if (message !== undefined) {
-        message_snapshot = _.extend({}, message);
+        return _.extend({}, message);
-    } else {
-        // Save what we can.
-        message_snapshot = create_message_object();
-    }
-};
-
-function clear_message_snapshot() {
-    $("#restore-draft").hide();
-    message_snapshot = undefined;
-}
-
-exports.restore_message = function () {
-    if (!message_snapshot) {
-        return;
-    }
-    var snapshot_copy = _.extend({}, message_snapshot);
-    if ((snapshot_copy.type === "stream" &&
-         snapshot_copy.stream.length > 0 &&
-         snapshot_copy.subject.length > 0) ||
-        (snapshot_copy.type === "private" &&
-         snapshot_copy.reply_to.length > 0)) {
-        snapshot_copy = _.extend({replying_to_message: snapshot_copy},
-                                 snapshot_copy);
-    }
-    clear_message_snapshot();
-    compose_fade.clear_compose();
-    compose.start(snapshot_copy.type, snapshot_copy);
-    exports.autosize_textarea();
-
-    if (snapshot_copy.content !== undefined &&
-        util.is_all_or_everyone_mentioned(snapshot_copy.content)) {
-        show_all_everyone_warnings();
     }
+    // Save what we can.
+    return create_message_object();
 };
 
 function compose_error(error_text, bad_input) {
@@ -525,9 +487,9 @@ function process_send_time(message_id, start_time, locally_echoed) {
 
 function clear_compose_box() {
     $("#new_message_content").val('').focus();
+    drafts.delete_draft_after_send();
     exports.autosize_textarea();
     $("#send-status").hide(0);
-    clear_message_snapshot();
     $("#compose-send-button").removeAttr('disabled');
     $("#sending-indicator").hide();
     resize.resize_bottom_whitespace();
@@ -622,7 +584,7 @@ exports.respond_to_message = function (opts) {
     var msg_type;
     // Before initiating a reply to a message, if there's an
     // in-progress composition, snapshot it.
-    compose.snapshot_message();
+    drafts.update_draft();
 
     message = current_msg_list.selected_message();
 
@@ -1043,7 +1005,6 @@ $(function () {
         var message = $("#new_message_content").val();
         $("#new_message_content").hide();
         $("#markdown_preview").hide();
-        $("#restore-draft").hide();
         $("#undo_markdown_preview").show();
         $("#preview_message_area").show();
 

static/js/drafts.js

@@ -0,0 +1,230 @@
+var drafts = (function () {
+
+var exports = {};
+
+var draft_model = (function () {
+    var exports = {};
+
+    // the key that the drafts are stored under.
+    var KEY = "drafts";
+    var ls = localstorage();
+    ls.version = 1;
+
+    function getTimestamp() {
+        return new Date().getTime();
+    }
+
+    function get() {
+        return ls.get(KEY) || {};
+    }
+    exports.get = get;
+
+    exports.getDraft = function (id) {
+        return get()[id] || false;
+    };
+
+    function save(drafts) {
+        ls.set(KEY, drafts);
+    }
+
+    exports.addDraft = function (draft) {
+        var drafts = get();
+
+        // use the base16 of the current time + a random string to reduce
+        // collisions to essentially zero.
+        var id = getTimestamp().toString(16) + "-" + Math.random().toString(16).split(/\./).pop();
+
+        draft.updatedAt = getTimestamp();
+        drafts[id] = draft;
+        save(drafts);
+
+        return id;
+    };
+
+    exports.editDraft = function (id, draft) {
+        var drafts = get();
+
+        if (drafts[id]) {
+            draft.updatedAt = getTimestamp();
+            drafts[id] = draft;
+            save(drafts);
+        }
+    };
+
+    exports.deleteDraft = function (id) {
+        var drafts = get();
+
+        delete drafts[id];
+        save(drafts);
+    };
+
+    return exports;
+}());
+
+exports.draft_model = draft_model;
+
+exports.update_draft = function () {
+    var draft = compose.snapshot_message();
+    var draft_id = $("#new_message_content").data("draft-id");
+
+    if (draft_id !== undefined) {
+        if (draft !== undefined) {
+            draft_model.editDraft(draft_id, draft);
+        } else {
+            draft_model.deleteDraft(draft_id);
+        }
+    } else {
+        if (draft !== undefined) {
+            var new_draft_id = draft_model.addDraft(draft);
+            $("#new_message_content").data("draft-id", new_draft_id);
+        }
+    }
+};
+
+exports.delete_draft_after_send = function () {
+    var draft_id = $("#new_message_content").data("draft-id");
+    if (draft_id) {
+        draft_model.deleteDraft(draft_id);
+    }
+    $("#new_message_content").removeData("draft-id");
+};
+
+exports.restore_draft = function (draft_id) {
+    var draft = draft_model.getDraft(draft_id);
+    if (!draft) {
+        return;
+    }
+
+    var draft_copy = _.extend({}, draft);
+    if ((draft_copy.type === "stream" &&
+         draft_copy.stream.length > 0 &&
+             draft_copy.subject.length > 0) ||
+                 (draft_copy.type === "private" &&
+                  draft_copy.reply_to.length > 0)) {
+        draft_copy = _.extend({replying_to_message: draft_copy},
+                              draft_copy);
+    }
+
+    exports.close();
+    compose_fade.clear_compose();
+    if (draft.type === "stream" && draft.stream === "") {
+        draft_copy.subject = "";
+    }
+    compose.start(draft_copy.type, draft_copy);
+    compose.autosize_textarea();
+    $("#new_message_content").data("draft-id", draft_id);
+};
+
+exports.setup_page = function (callback) {
+    function setup_event_handlers() {
+        $(".draft_controls .restore-draft").on("click", function (e) {
+            e.stopPropagation();
+
+            var draft_row = $(this).closest(".draft-row");
+            var draft_id = draft_row.data("draft-id");
+            exports.restore_draft(draft_id);
+        });
+
+        $(".draft_controls .delete-draft").on("click", function () {
+            var draft_row = $(this).closest(".draft-row");
+            var draft_id = draft_row.data("draft-id");
+
+            exports.draft_model.deleteDraft(draft_id);
+            draft_row.remove();
+
+            if ($("#drafts_table .draft-row").length === 0) {
+                $('#drafts_table .no-drafts').show();
+            }
+        });
+    }
+
+    function format_drafts(data) {
+        var drafts = _.mapObject(data, function (draft, id) {
+            var formatted;
+            if (draft.type === "stream") {
+                // In case there is no stream for the draft, we need a
+                // single space char for proper rendering of the stream label
+                var space_string = new Handlebars.SafeString(" ");
+                var stream = (draft.stream.length > 0 ? draft.stream : space_string);
+                formatted = {
+                    draft_id: id,
+                    is_stream: true,
+                    stream: stream,
+                    stream_color: stream_data.get_color(draft.stream),
+                    topic: draft.subject,
+                    raw_content: draft.content,
+                };
+                echo.apply_markdown(formatted);
+            } else {
+                var emails = util.extract_pm_recipients(draft.private_message_recipient);
+                var recipients = _.map(emails, function (email) {
+                    email = email.trim();
+                    var person = people.get_by_email(email);
+                    if (person !== undefined) {
+                        return person.full_name;
+                    }
+                    return email;
+                }).join(', ');
+
+                formatted = {
+                    draft_id: id,
+                    is_stream: false,
+                    recipients: recipients,
+                    raw_content: draft.content,
+                };
+                echo.apply_markdown(formatted);
+            }
+            return formatted;
+        });
+        return drafts;
+    }
+
+    function _populate_and_fill() {
+        $('#drafts_table').empty();
+        var drafts = format_drafts(draft_model.get());
+        var rendered = templates.render('draft_table_body', { drafts: drafts });
+        $('#drafts_table').append(rendered);
+        if ($("#drafts_table .draft-row").length > 0) {
+            $('#drafts_table .no-drafts').hide();
+        }
+
+        if (callback) {
+            callback();
+        }
+
+        setup_event_handlers();
+    }
+
+    function populate_and_fill() {
+        i18n.ensure_i18n(function () {
+            _populate_and_fill();
+        });
+    }
+    populate_and_fill();
+};
+
+exports.launch = function () {
+    exports.setup_page(function () {
+        $("#draft_overlay").addClass("show");
+    });
+};
+
+exports.close = function () {
+    hashchange.exit_settings();
+    $("#draft_overlay").removeClass("show");
+};
+
+$(function () {
+    window.addEventListener("beforeunload", function () {
+        exports.update_draft();
+    });
+
+    $("#new_message_content").focusout(exports.update_draft);
+});
+
+return exports;
+
+}());
+if (typeof module !== 'undefined') {
+    module.exports = drafts;
+}

static/js/hashchange.js

@@ -184,6 +184,9 @@ function do_hashchange(from_reload) {
     case "#subscriptions":
         ui.change_tab_to("#subscriptions");
         break;
+    case "#drafts":
+        ui.change_tab_to("#drafts");
+        break;
     case "#administration":
         ui.change_tab_to("#administration");
         break;
@@ -243,7 +246,7 @@ var get_hash_group = (function () {
 
 function should_ignore(hash) {
     // an array of hashes to ignore (eg. ["subscriptions", "settings", "administration"]).
-    var ignore_list = ["subscriptions", "settings", "administration"];
+    var ignore_list = ["subscriptions", "drafts", "settings", "administration"];
     var main_hash = get_main_hash(hash);
 
     return (ignore_list.indexOf(main_hash) > -1);
@@ -275,6 +278,8 @@ function hashchanged(from_reload, e) {
 
             if (base === "subscriptions") {
                 subs.launch();
+            } else if (base === "drafts") {
+                drafts.launch();
             } else if (/settings|administration/.test(base)) {
                 settings.setup_page();
                 admin.setup_page();

static/js/hotkey.js

@@ -211,6 +211,9 @@ function process_hotkey(e) {
         } else if ($("#subscription_overlay").hasClass("show")) {
             subs.close();
             return true;
+        } else if ($("#draft_overlay").hasClass("show")) {
+            drafts.close();
+            return true;
         } else if ($(".informational-overlays").hasClass("show")) {
             ui.hide_info_overlay();
             return true;

static/styles/compose.css

@@ -11,6 +11,12 @@
     width: 10px;
 }
 
+#compose_controls .drafts-link {
+    position: absolute;
+    left: 10px;
+    bottom: 5px;
+}
+
 .new_message_button {
     padding-top: 1.1em;
 }
@@ -355,14 +361,7 @@ input.recipient_box {
     display: none;
 }
 
-#sending-indicator {
+.compose_table .drafts-link {
-    float: left;
-    font-weight: bold;
-    display: none;
-}
-
-#restore-draft {
-    display: none;
     position: relative;
     margin-right: 1em;
     margin-left: 5px;
@@ -370,11 +369,13 @@ input.recipient_box {
 }
 
 #sending-indicator {
-    padding-top: 2px;
+    float: left;
+    font-weight: bold;
+    display: none;
 }
 
-#restore-draft:hover {
+#sending-indicator {
-    cursor:  pointer;
+    padding-top: 2px;
 }
 
 #compose a.message-control-button {

static/styles/drafts.css

@@ -0,0 +1,166 @@
+.drafts {
+    margin-top: 55px;
+    padding-left: 15px;
+    -webkit-font-smoothing: antialiased;
+}
+
+.drafts-container {
+    position: relative;
+    height: 95%;
+    background-color: #fff;
+    border-radius: 4px;
+    padding: 0px;
+    width: 60%;
+    overflow: hidden;
+    max-width: 1200px;
+    max-height: 1000px;
+}
+
+.drafts-header {
+    padding: 20px;
+    margin-bottom: 10px;
+    text-align: center;
+    text-transform: uppercase;
+    font-weight: 700;
+    font-size: 1.25em;
+    border-bottom: 1px solid #ddd;
+}
+
+.drafts-container .exit {
+    font-weight: 400;
+    position: absolute;
+    top: 10px;
+    right: 10px;
+    color: #AAA;
+    cursor: pointer;
+}
+
+.drafts-container .exit-sign {
+    position: relative;
+    top: 3px;
+    margin-left: 3px;
+    font-size: 1.7em;
+    font-weight: 300;
+    cursor: pointer;
+}
+
+.drafts-list {
+    overflow: auto;
+    height: calc(100% - 90px);
+    width: 100%;
+}
+
+.drafts-list .no-drafts {
+    display: block;
+    margin-top: calc(45vh - 30px - 1.5em);
+    text-align: center;
+    font-size: 1.5em;
+    color: #aaa;
+    pointer-events: none;
+    -webkit-font-smoothing: antialiased;
+}
+
+.draft-row {
+    padding: 5px 10px;
+}
+
+.draft-row.active {
+    background-color: #eee;
+}
+
+.draft-row > div {
+    display: inline-block;
+    vertical-align: top;
+}
+
+.draft-row .draft-info-box {
+    width: 100%;
+    background: #f1f1f1;
+    border-bottom: 1px solid #e2e2e2;
+    border-top: 1px solid #e2e2e2;
+    margin-bottom: 10px;
+}
+
+.draft-info-box .messagebox {
+    cursor: auto;
+}
+
+.draft-info-box .message_content {
+    line-height: 1;
+    padding-top: 10px;
+    padding-bottom: 10px;
+    padding-left: 0px;
+}
+
+.draft-row .draft-info-box .draft_controls {
+    display: inline-block;
+    position: absolute;
+    top: 5px;
+    right: -55px;
+}
+
+.draft_controls .restore-draft {
+    cursor: pointer;
+    margin-right: 5px;
+    color: #037C2C;
+    opacity: 0.7;
+}
+
+.draft_controls .restore-draft:hover {
+    opacity: 1;
+}
+
+.draft_controls .delete-draft {
+    cursor: pointer;
+    margin-left: 5px;
+    color: #D8000C;
+    opacity: 0.7;
+}
+
+.draft_controls .delete-draft:hover {
+    opacity: 1;
+}
+
+#draft_overlay {
+    pointer-events: none;
+    opacity: 0;
+    position: fixed;
+    top: 0px;
+    left: 0px;
+    width: 100vw;
+    height: 100vh;
+    background-color: rgba(0,0,0,0.8);
+    overflow: auto;
+    z-index: 102;
+
+    transition: all 0.3s ease;
+}
+
+#draft_overlay.show {
+    display: block;
+    pointer-events: all;
+    opacity: 1;
+}
+
+#draft_overlay .drafts-container {
+    -webkit-transform: scale(0.5);
+    transform: scale(0.5);
+    transition: all 0.3s ease;
+}
+
+#draft_overlay.show .drafts-container {
+    -webkit-transform: scale(1);
+    transform: scale(1);
+}
+
+@media (max-width: 1130px) {
+    .drafts-container {
+        max-width: 60%;
+    }
+}
+
+@media (max-width: 700px) {
+    #draft_overlay .drafts-container {
+        height: 95%;
+    }
+}

static/templates/draft.handlebars

@@ -0,0 +1,42 @@
+<div class="draft-row" data-draft-id="{{draft_id}}">
+  <div class="draft-info-box">
+    {{#if is_stream}}
+    <div class="message_header message_header_stream">
+      <div class="message-header-contents">
+        <div class="message_label_clickable stream_label"
+          style="background: {{stream_color}}; border-left-color: {{stream_color}};">
+          {{stream}}
+        </div>
+
+        <span class="stream_topic">
+          <div class="message_label_clickable narrows_by_subject">
+            {{topic}}
+          </div>
+        </span>
+      </div>
+    </div>
+    {{else}}
+    <div class="message_header message_header_private_message dark_background">
+      <div class="message-header-contents">
+        <div class="message_label_clickable stream_label">
+          {{#tr this}}You and __recipients__{{/tr}}
+        </div>
+      </div>
+    </div>
+    {{/if}}
+    <div class="message_row{{^is_stream}} private-message{{/is_stream}}">
+      <div class="messagebox"
+        style="box-shadow: inset 2px 0px 0px 0px {{#if is_stream}}{{stream_color}}{{else}}#444444{{/if}}, -1px 0px 0px 0px {{#if is_stream}}{{stream_color}}{{else}}#444444{{/if}};">
+        <div class="messagebox-content">
+          <div class="message_top_line">
+            <div class="draft_controls">
+              <i class="icon-vector-large icon-vector-pencil restore-draft" data-toggle="tooltip" title="{{t 'Restore Draft' }}"></i>
+              <i class="icon-vector-large icon-vector-trash delete-draft" data-toggle="tooltip" title="{{t 'Delete Draft' }}"></i>
+            </div>
+          </div>
+          <div class="message_content">{{{content}}}</div>
+        </div>
+      </div>
+    </div>
+  </div>
+</div>

static/templates/draft_table_body.handlebars

@@ -0,0 +1,21 @@
+<div id="draft_overlay" class="new-style" data-overlay="drafts">
+  <div class="flex">
+    <div class="drafts-container">
+      <div class="drafts-header">
+        {{t 'Drafts' }}
+        <div class="exit">
+          <span class="exit-sign">&times;</span>
+        </div>
+      </div>
+      <div class="drafts-list">
+        <div class="no-drafts">
+          {{t 'No Drafts.'}}
+        </div>
+
+        {{#each drafts}}
+          {{partial "draft"}}
+        {{/each}}
+      </div>
+    </div>
+  </div>
+</div>

templates/zerver/compose.html

@@ -3,6 +3,7 @@
   </div>
   <div id="compose-container">
     <div id="compose_controls" class="compose-content">
+          <a class="drafts-link" href="#drafts">{{ _('Drafts') }}</a>
           <div id="compose_buttons">
             <span class="new_message_button">
               <button type="button" class="btn btn-default btn-large compose_stream_button"
@@ -87,7 +88,7 @@
                   <a class="message-control-button icon-vector-font" title="{{ _('Formatting') }}" data-overlay-trigger="markdown-help"></a>
                   <a id="undo_markdown_preview" class="icon-vector-edit" style="display:none;" title="{{ _('Write') }}"></a>
                   <a id="markdown_preview" class="icon-vector-eye-open" title="{{ _('Preview') }}"></a>
-                  <a id="restore-draft" onclick="compose.restore_message();">{{ _('Restore draft') }}</a>
+                  <a class="drafts-link" href="#drafts">{{ _('Drafts') }}</a>
                   <span id="sending-indicator">{{ _('Sending...') }}</span>
                   <div id="send_controls">
                     <label id="enter-sends-label" class="compose_checkbox_label" for="enter_sends">{{ _('Press Enter to send') }}&nbsp;</label>

templates/zerver/drafts.html

@@ -0,0 +1,5 @@
+{# List of drafts for an user. #}
+<div class="drafts">
+  <div id="drafts_table">
+  </div>
+</div>

templates/zerver/index.html

@@ -122,6 +122,7 @@ var page_params = {{ page_params }};
     </div><!--/right sidebar-->
     {% include "zerver/image-overlay.html" %}
     {% include "zerver/subscriptions.html" %}
+    {% include "zerver/drafts.html" %}
 </div><!--/row-->
     <div class="informational-overlays new-style">
         <div class="overlay-content">

zerver/tests/test_templates.py

@@ -63,6 +63,7 @@ class TemplateTestCase(ZulipTestCase):
 
         logged_in = [
             'analytics/stats.html',
+            'zerver/drafts.html',
             'zerver/home.html',
             'zerver/invite_user.html',
             'zerver/keyboard_shortcuts.html',

zproject/settings.py

@@ -684,6 +684,7 @@ PIPELINE = {
                 'styles/zulip.css',
                 'styles/settings.css',
                 'styles/subscriptions.css',
+                'styles/drafts.css',
                 'styles/informational-overlays.css',
                 'styles/compose.css',
                 'styles/reactions.css',
@@ -706,6 +707,7 @@ PIPELINE = {
                 'styles/zulip.css',
                 'styles/settings.css',
                 'styles/subscriptions.css',
+                'styles/drafts.css',
                 'styles/informational-overlays.css',
                 'styles/compose.css',
                 'styles/reactions.css',
@@ -793,6 +795,7 @@ JS_SPECS = {
             'js/dict.js',
             'js/components.js',
             'js/localstorage.js',
+            'js/drafts.js',
             'js/channel.js',
             'js/setup.js',
             'js/unread_ui.js',