zulip/static/js/resize.js

250 lines
8.1 KiB
JavaScript

"use strict";
const autosize = require("autosize");
const condense = require("./condense");
const message_viewport = require("./message_viewport");
const util = require("./util");
let narrow_window = false;
function confine_to_range(lo, val, hi) {
if (val < lo) {
return lo;
}
if (val > hi) {
return hi;
}
return val;
}
function size_blocks(blocks, usable_height) {
let sum_height = 0;
for (const block of blocks) {
sum_height += block.real_height;
}
for (const block of blocks) {
let ratio = block.real_height / sum_height;
ratio = confine_to_range(0.05, ratio, 0.85);
block.max_height = confine_to_range(80, usable_height * ratio, 1.2 * block.real_height);
}
}
function get_new_heights() {
const res = {};
const viewport_height = message_viewport.height();
const top_navbar_height = $("#top_navbar").safeOuterHeight(true);
const invite_user_link_height = $("#invite-user-link").safeOuterHeight(true) || 0;
res.bottom_whitespace_height = viewport_height * 0.4;
res.main_div_min_height = viewport_height - top_navbar_height;
res.stream_filters_max_height =
viewport_height -
Number.parseInt($("#left-sidebar").css("marginTop"), 10) -
Number.parseInt($(".narrows_panel").css("marginTop"), 10) -
Number.parseInt($(".narrows_panel").css("marginBottom"), 10) -
$("#global_filters").safeOuterHeight(true) -
$("#streams_header").safeOuterHeight(true);
// Don't let us crush the stream sidebar completely out of view
res.stream_filters_max_height = Math.max(80, res.stream_filters_max_height);
// RIGHT SIDEBAR
const usable_height =
viewport_height -
Number.parseInt($("#right-sidebar").css("marginTop"), 10) -
$("#userlist-header").safeOuterHeight(true) -
$("#user_search_section").safeOuterHeight(true) -
invite_user_link_height -
$("#sidebar-keyboard-shortcuts").safeOuterHeight(true);
res.buddy_list_wrapper_max_height = Math.max(80, usable_height);
return res;
}
function left_userlist_get_new_heights() {
const res = {};
const viewport_height = message_viewport.height();
const viewport_width = message_viewport.width();
res.viewport_height = viewport_height;
res.viewport_width = viewport_width;
// main div
const top_navbar_height = $(".header").safeOuterHeight(true);
res.bottom_whitespace_height = viewport_height * 0.4;
res.main_div_min_height = viewport_height - top_navbar_height;
// left sidebar
const stream_filters = $("#stream_filters").expectOne();
const buddy_list_wrapper = $("#buddy_list_wrapper").expectOne();
const stream_filters_real_height = stream_filters.prop("scrollHeight");
const user_list_real_height = ui.get_scroll_element(buddy_list_wrapper).prop("scrollHeight");
res.total_leftlist_height =
viewport_height -
Number.parseInt($("#left-sidebar").css("marginTop"), 10) -
Number.parseInt($(".narrows_panel").css("marginTop"), 10) -
Number.parseInt($(".narrows_panel").css("marginBottom"), 10) -
$("#global_filters").safeOuterHeight(true) -
$("#streams_header").safeOuterHeight(true) -
$("#userlist-header").safeOuterHeight(true) -
$("#user_search_section").safeOuterHeight(true) -
Number.parseInt(stream_filters.css("marginBottom"), 10);
const blocks = [
{
real_height: stream_filters_real_height,
},
{
real_height: user_list_real_height,
},
];
size_blocks(blocks, res.total_leftlist_height);
res.stream_filters_max_height = blocks[0].max_height;
res.buddy_list_wrapper_max_height = blocks[1].max_height;
return res;
}
exports.watch_manual_resize = function (element) {
return (function on_box_resize(cb) {
const box = document.querySelector(element);
if (!box) {
blueslip.error("Bad selector in watch_manual_resize: " + element);
return undefined;
}
const meta = {
box,
height: null,
mousedown: false,
};
const box_handler = function () {
meta.mousedown = true;
meta.height = meta.box.clientHeight;
};
meta.box.addEventListener("mousedown", box_handler);
// If the user resizes the textarea manually, we use the
// callback to stop autosize from adjusting the height.
const body_handler = function () {
if (meta.mousedown === true) {
meta.mousedown = false;
if (meta.height !== meta.box.clientHeight) {
meta.height = meta.box.clientHeight;
cb.call(meta.box, meta.height);
}
}
};
document.body.addEventListener("mouseup", body_handler);
return [box_handler, body_handler];
})((height) => {
// This callback disables autosize on the textarea. It
// will be re-enabled when this component is next opened.
autosize.destroy($(element)).height(height + "px");
});
};
exports.resize_bottom_whitespace = function (h) {
$("#bottom_whitespace").height(h.bottom_whitespace_height);
};
exports.resize_stream_filters_container = function (h) {
h = narrow_window ? left_userlist_get_new_heights() : get_new_heights();
exports.resize_bottom_whitespace(h);
$("#stream-filters-container").css("max-height", h.stream_filters_max_height);
};
exports.resize_sidebars = function () {
let sidebar;
if (page_params.left_side_userlist) {
const css_narrow_mode = message_viewport.is_narrow();
$("#top_navbar").removeClass("rightside-userlist");
const right_items = $(".right-sidebar-items").expectOne();
if (css_narrow_mode && !narrow_window) {
// move stuff to the left sidebar (skinny mode)
narrow_window = true;
popovers.set_userlist_placement("left");
sidebar = $("#left-sidebar").expectOne();
sidebar.append(right_items);
$("#buddy_list_wrapper").css("margin", "0px");
$("#userlist-toggle").css("display", "none");
$("#invite-user-link").hide();
} else if (!css_narrow_mode && narrow_window) {
// move stuff to the right sidebar (wide mode)
narrow_window = false;
popovers.set_userlist_placement("right");
sidebar = $("#right-sidebar").expectOne();
sidebar.append(right_items);
$("#buddy_list_wrapper").css("margin", "");
$("#userlist-toggle").css("display", "");
$("#invite-user-link").show();
}
}
const h = narrow_window ? left_userlist_get_new_heights() : get_new_heights();
$("#buddy_list_wrapper").css("max-height", h.buddy_list_wrapper_max_height);
$("#stream-filters-container").css("max-height", h.stream_filters_max_height);
return h;
};
exports.resize_page_components = function () {
const h = exports.resize_sidebars();
exports.resize_bottom_whitespace(h);
panels.resize_app();
};
let _old_width = $(window).width();
exports.handler = function () {
const new_width = $(window).width();
if (new_width !== _old_width) {
_old_width = new_width;
condense.clear_message_content_height_cache();
}
// On mobile web, we want to avoid hiding a popover here,
// especially if this resize was triggered by a virtual keyboard
// popping up when the user opened that very popover.
const mobile = util.is_mobile();
if (!mobile) {
popovers.hide_all();
}
exports.resize_page_components();
// Re-compute and display/remove [More] links to messages
condense.condense_and_collapse($(".message_table .message_row"));
// This function might run onReady (if we're in a narrow window),
// but before we've loaded in the messages; in that case, don't
// try to scroll to one.
if (current_msg_list.selected_id() !== -1) {
if (mobile) {
popovers.set_suppress_scroll_hide();
}
navigate.scroll_to_selected();
}
};
window.resize = exports;