115 lines
4.4 KiB
JavaScript
115 lines
4.4 KiB
JavaScript
import debounce from 'lodash-es/debounce';
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import { _converse } from '@converse/headless/core';
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import { applyDragResistance } from './utils.js';
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const DragResizableMixin = {
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initDragResize () {
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const view = this;
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const debouncedSetDimensions = debounce(() => view.setDimensions());
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window.addEventListener('resize', view.debouncedSetDimensions);
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this.listenTo(this.model, 'destroy', () => window.removeEventListener('resize', debouncedSetDimensions));
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// Determine and store the default box size.
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// We need this information for the drag-resizing feature.
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const flyout = this.querySelector('.box-flyout');
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const style = window.getComputedStyle(flyout);
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if (this.model.get('height') === undefined) {
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const height = parseInt(style.height.replace(/px$/, ''), 10);
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const width = parseInt(style.width.replace(/px$/, ''), 10);
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this.model.set('height', height);
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this.model.set('default_height', height);
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this.model.set('width', width);
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this.model.set('default_width', width);
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}
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const min_width = style['min-width'];
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const min_height = style['min-height'];
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this.model.set('min_width', min_width.endsWith('px') ? Number(min_width.replace(/px$/, '')) : 0);
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this.model.set('min_height', min_height.endsWith('px') ? Number(min_height.replace(/px$/, '')) : 0);
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// Initialize last known mouse position
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this.prev_pageY = 0;
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this.prev_pageX = 0;
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if (_converse.connection?.connected) {
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this.height = this.model.get('height');
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this.width = this.model.get('width');
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}
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return this;
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},
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resizeChatBox (ev) {
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let diff;
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if (_converse.resizing.direction.indexOf('top') === 0) {
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diff = ev.pageY - this.prev_pageY;
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if (diff) {
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this.height =
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this.height - diff > (this.model.get('min_height') || 0)
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? this.height - diff
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: this.model.get('min_height');
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this.prev_pageY = ev.pageY;
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this.setChatBoxHeight(this.height);
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}
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}
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if (_converse.resizing.direction.includes('left')) {
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diff = this.prev_pageX - ev.pageX;
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if (diff) {
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this.width =
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this.width + diff > (this.model.get('min_width') || 0)
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? this.width + diff
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: this.model.get('min_width');
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this.prev_pageX = ev.pageX;
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this.setChatBoxWidth(this.width);
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}
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}
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},
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setDimensions () {
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// Make sure the chat box has the right height and width.
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this.adjustToViewport();
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this.setChatBoxHeight(this.model.get('height'));
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this.setChatBoxWidth(this.model.get('width'));
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},
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setChatBoxHeight (height) {
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if (height) {
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height = applyDragResistance(height, this.model.get('default_height')) + 'px';
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} else {
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height = '';
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}
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const flyout_el = this.querySelector('.box-flyout');
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if (flyout_el !== null) {
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flyout_el.style.height = height;
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}
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},
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setChatBoxWidth (width) {
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if (width) {
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width = applyDragResistance(width, this.model.get('default_width')) + 'px';
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} else {
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width = '';
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}
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this.style.width = width;
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const flyout_el = this.querySelector('.box-flyout');
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if (flyout_el !== null) {
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flyout_el.style.width = width;
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}
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},
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adjustToViewport () {
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/* Event handler called when viewport gets resized. We remove
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* custom width/height from chat boxes.
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*/
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const viewport_width = Math.max(document.documentElement.clientWidth, window.innerWidth || 0);
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const viewport_height = Math.max(document.documentElement.clientHeight, window.innerHeight || 0);
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if (viewport_width <= 480) {
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this.model.set('height', undefined);
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this.model.set('width', undefined);
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} else if (viewport_width <= this.model.get('width')) {
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this.model.set('width', undefined);
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} else if (viewport_height <= this.model.get('height')) {
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this.model.set('height', undefined);
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}
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}
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};
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export default DragResizableMixin;
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