Typically, a view can specify its templateName and then use the default
render method on Whisper.View, except in some special cases like message
view or message detail where other operations are performed during
render.
// FREEBIE
By adding the drag and drop support for media files, the default
event handlers were overwritten. Thus drag and drop did not support
text. Now, the drag and drop listeners revert to the default behaviour
when the user does not drag a file.
Resolves: #478
Per WhisperSystems/TextSecure@8a1428e, bump GIF limit to 5MB, and
audio/video limit to 100MB. Update toast to notify in correct
human-readable units. The only kB size limit is for images, and will
trigger only if after scaling up to 4 times, the rescaled image did not
come in under the size limit without unacceptable quality loss.
Closes#354
Protocol and handling is all analogous to contact sync: Multiple
GroupDetails structs are packed into a single attachment blob and parsed
on our end. We don't display the synced groups in the conversation list
until a new message is sent to one of them.
// FREEBIE
Although I find the previous implementation more elegant, it results in
a deeper nesting of Promises than necessary, which can make debugging
more complicated. The canvas scaling and compression apis are actually
synchronous, so the callback structure isn't really recessary here.
Converting to a loop also makes this process easier to understand at
a glance.
Fixed some bugs along the way:
* accidentally scaling small images up to 1920px
* jpeg compressing gifs and other formats even if unnecessary
Previously we would not scale large resolution images with small file
sizes, but in fact, both resolution and file size constraints should be
enforced.
Add contentType-specific limits, switch to lazy-init iff we encounter an
oversized file, and restyle as a toast, factoring out a generic
ToastView along the way.