зеркало из https://github.com/microsoft/reactxp.git
Adding the ability to trigger layout change (on web) explicitly. (#74)
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@ -140,6 +140,9 @@ export abstract class UserInterface {
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// On-screen Keyboard
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abstract dismissKeyboard(): void;
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// Explicit layout change indication
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abstract layoutChangePending(): void;
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}
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export abstract class Modal {
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@ -121,6 +121,10 @@ export class UserInterface extends RX.UserInterface {
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renderMainView() {
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// Nothing to do
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}
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layoutChangePending() {
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// Nothing to do
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}
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}
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export default new UserInterface();
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@ -18,6 +18,8 @@ import RX = require('../common/Interfaces');
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import Types = require('../common/Types');
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export class UserInterface extends RX.UserInterface {
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private _layoutChangeAnimationFrame: number;
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measureLayoutRelativeToWindow(component: React.Component<any, any>) :
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SyncTasks.Promise<Types.LayoutInfo> {
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@ -92,7 +94,7 @@ export class UserInterface extends RX.UserInterface {
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}
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return pixelRatio;
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}
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}
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setMainView(element: React.ReactElement<any>): void {
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FrontLayerViewManager.setMainView(element);
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@ -105,6 +107,19 @@ export class UserInterface extends RX.UserInterface {
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dismissKeyboard() {
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// Nothing to do
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}
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layoutChangePending() {
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if (!this._layoutChangeAnimationFrame) {
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// ViewBase checks for the layout changes once a second or on window resize.
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// To avoid laggy layout updates we can indicate that there is a change pending.
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this._layoutChangeAnimationFrame = window.requestAnimationFrame(() => {
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this._layoutChangeAnimationFrame = undefined;
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let event = document.createEvent('HTMLEvents');
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event.initEvent('resize', true, false);
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window.dispatchEvent(event);
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});
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}
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}
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}
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export default new UserInterface();
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