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Don't re-init the stickerpicker unless something actually changes #2862
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Fixes element-hq/element-web#9354 #2801 introduced a change which tried to make sure that when the widget URL was changed that the picker would be re-mounted, however it accidentally introduced a regression. While it effectively did the task it wanted to, it failed to keep the previously-mounted sticker picker alive. This is because the Stickerpicker component is remounted when opened, and the _updateWidget function is called. This results in this.state not having the "current" widget, meaning a URL change is always detected when the component is remounted (room changes, open sticker picker). Instead of remounting always, we'll instead track which sticker picker widget is being used out of band. This therefore means that whenever the Stickerpicker component is mounted it doesn't create a whole new widget, and the existing (background) picker can be used. This also fixes the loading screen that people would see when opening the sticker picker after switching rooms, something which the persistent widget stuff is supposed to solve.
When setting, delete the old one. Because delete checks if it exists first, we can safely call this. The change in FromWidgetPostMessageApi is just something noticed while debugging.
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For additional context: the reason why multiple stickers were being issued was because the |
jryans
suggested changes
Apr 2, 2019
jryans
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Apr 4, 2019
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Fixes element-hq/element-web#9354
#2801 introduced a change which tried to make sure that when the widget URL was changed that the picker would be re-mounted, however it accidentally introduced a regression. While it effectively did the task it wanted to, it failed to keep the previously-mounted sticker picker alive. This is because the Stickerpicker component is remounted when opened, and the _updateWidget function is called. This results in this.state not having the "current" widget, meaning a URL change is always detected when the component is remounted (room changes, open sticker picker).
Instead of remounting always, we'll instead track which sticker picker widget is being used out of band. This therefore means that whenever the Stickerpicker component is mounted it doesn't create a whole new widget, and the existing (background) picker can be used. This also fixes the loading screen that people would see when opening the sticker picker after switching rooms, something which the persistent widget stuff is supposed to solve.
This is done with a community hat on: