Bugzilla

So there're two bugs here?

1. Upload multiple large files cause phone freeze or black screen for a few time 
2. Unable to select file with "#" (pound sign/ hash mark) in filename

Am i understand correctly?

For 
1. There's heavy io in selecting multiple files because it will copy file to a temp uploads folder under app's cache folder one by one.  Iteration [Code](https://searchfox.org/mozilla-mobile/source/firefox-android/android-components/components/browser/engine-gecko/src/main/java/mozilla/components/browser/engine/gecko/prompt/GeckoPromptDelegate.kt#455-456)  , and the copy [code](https://searchfox.org/mozilla-mobile/source/firefox-android/android-components/components/browser/engine-gecko/src/main/java/mozilla/components/browser/engine/gecko/prompt/GeckoPromptDelegate.kt#876-880) . There're some solutions: 1. do it in parallel  2. don't do it in IO thread.

2. I suggest to open a new ticket to trace this bug better. The problem is [here](https://searchfox.org/mozilla-mobile/source/firefox-android/android-components/components/browser/engine-gecko/src/main/java/mozilla/components/browser/engine/gecko/prompt/GeckoPromptDelegate.kt#883)  , "#" in the file scheme is treated as a "fragment" just like normal http urls. It will be ignored when [getPath](https://searchfox.org/mozilla-central/source/mobile/android/geckoview/src/main/java/org/mozilla/geckoview/GeckoSession.java#6177-6178)  is called.  The solution: Escape the file scheme : `return Uri.parse("file:///${Uri.encode(temporalFile.absolutePath)}")`

So there're two bugs here?

1. Upload multiple large files cause phone freeze or black screen for a few time 
2. Unable to select file with "#" (pound sign/ hash mark) in filename

Am i understand correctly?

For 
1. There's heavy IO in selecting file (especially in selecting multiple/large files) because it will copy file to a temp uploads folder under app's cache folder one by one.  Iteration [Code](https://searchfox.org/mozilla-mobile/source/firefox-android/android-components/components/browser/engine-gecko/src/main/java/mozilla/components/browser/engine/gecko/prompt/GeckoPromptDelegate.kt#455-456)  , and the copy [code](https://searchfox.org/mozilla-mobile/source/firefox-android/android-components/components/browser/engine-gecko/src/main/java/mozilla/components/browser/engine/gecko/prompt/GeckoPromptDelegate.kt#876-880) . There're some solutions: 1. do it in parallel  2. don't do it in IO thread.

2. I suggest to open a new ticket to trace this bug better. The problem is [here](https://searchfox.org/mozilla-mobile/source/firefox-android/android-components/components/browser/engine-gecko/src/main/java/mozilla/components/browser/engine/gecko/prompt/GeckoPromptDelegate.kt#883)  , "#" in the file scheme is treated as a "fragment" just like normal http urls. It will be ignored when [getPath](https://searchfox.org/mozilla-central/source/mobile/android/geckoview/src/main/java/org/mozilla/geckoview/GeckoSession.java#6177-6178)  is called.  The solution: Escape the file scheme : `return Uri.parse("file:///${Uri.encode(temporalFile.absolutePath)}")`