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Respond to font size changes

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This commit is contained in:
Jorik Schellekens 2020-04-14 16:21:04 +01:00
parent c1827925da
commit af4dd2770c
2 changed files with 54 additions and 0 deletions
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4
src/components/structures/MatrixChat.js
View File

@ -66,6 +66,7 @@ import { storeRoomAliasInCache } from '../../RoomAliasCache';
import { defer } from "../../utils/promise"; import { defer } from "../../utils/promise";
import ToastStore from "../../stores/ToastStore"; import ToastStore from "../../stores/ToastStore";
import * as StorageManager from "../../utils/StorageManager"; import * as StorageManager from "../../utils/StorageManager";
import { FontWatcher } from '../../fontSize';
/** constants for MatrixChat.state.view */ /** constants for MatrixChat.state.view */
export const VIEWS = { export const VIEWS = {
@ -265,7 +266,9 @@ export default createReactClass({
this.dispatcherRef = dis.register(this.onAction); this.dispatcherRef = dis.register(this.onAction);
this._themeWatcher = new ThemeWatcher(); this._themeWatcher = new ThemeWatcher();
this._fontWatcher = new FontWatcher(10, 20);
this._themeWatcher.start(); this._themeWatcher.start();
this._fontWatcher.start();
this.focusComposer = false; this.focusComposer = false;
@ -353,6 +356,7 @@ export default createReactClass({
Lifecycle.stopMatrixClient(); Lifecycle.stopMatrixClient();
dis.unregister(this.dispatcherRef); dis.unregister(this.dispatcherRef);
this._themeWatcher.stop(); this._themeWatcher.stop();
this._fontWatcher.stop();
window.removeEventListener("focus", this.onFocus); window.removeEventListener("focus", this.onFocus);
window.removeEventListener('resize', this.handleResize); window.removeEventListener('resize', this.handleResize);
this.state.resizeNotifier.removeListener("middlePanelResized", this._dispatchTimelineResize); this.state.resizeNotifier.removeListener("middlePanelResized", this._dispatchTimelineResize);

50
src/fontSize.js Normal file
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@ -0,0 +1,50 @@
/*
Copyright 2020 The Matrix.org Foundation C.I.C.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
import dis from './dispatcher';
import SettingsStore from './settings/SettingsStore';
export class FontWatcher {
constructor(min_size, max_size) {
this._min_size = min_size;
this._max_size = max_size;
this._dispatcherRef = null;
}
start() {
this._setRootFontSize(SettingsStore.getValue("font_size"));
this._dispatcherRef = dis.register(this._onAction);
}
stop() {
dis.unregister(this._dispatcherRef);
}
_onAction = (payload) => {
if (payload.action === 'update-font-size') {
this._setRootFontSize(payload.size);
}
};
_setRootFontSize = size => {
let fontSize = this._min_size < size?size:this._min_size;
fontSize = fontSize < this._max_size?fontSize:this._max_size;
if (fontSize != size) {
SettingsStore.setValue("font_size", null, fontSize)
}
document.querySelector(":root").style.fontSize = fontSize + "px";
}
}