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@ -88,6 +88,9 @@ class ReaderActivity : BaseRxActivity<ReaderActivityBinding, ReaderPresenter>()
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addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)
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}
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}
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private const val ENABLED_BUTTON_IMAGE_ALPHA = 255
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private const val DISABLED_BUTTON_IMAGE_ALPHA = 64
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}
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private val preferences: PreferencesHelper by injectLazy()
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@ -587,13 +590,28 @@ class ReaderActivity : BaseRxActivity<ReaderActivityBinding, ReaderPresenter>()
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/**
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* Called from the presenter whenever a new [viewerChapters] have been set. It delegates the
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* method to the current viewer, but also set the subtitle on the toolbar.
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* method to the current viewer, but also set the subtitle on the toolbar, and
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* hides or disables the reader prev/next buttons if there's a prev or next chapter
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*/
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fun setChapters(viewerChapters: ViewerChapters) {
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binding.pleaseWait.isVisible = false
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viewer?.setChapters(viewerChapters)
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binding.toolbar.subtitle = viewerChapters.currChapter.chapter.name
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val leftChapterObject = if (viewer is R2LPagerViewer) viewerChapters.nextChapter else viewerChapters.prevChapter
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val rightChapterObject = if (viewer is R2LPagerViewer) viewerChapters.prevChapter else viewerChapters.nextChapter
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if (leftChapterObject == null && rightChapterObject == null) {
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binding.leftChapter.isVisible = false
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binding.rightChapter.isVisible = false
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} else {
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binding.leftChapter.isEnabled = leftChapterObject != null
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binding.leftChapter.imageAlpha = if (leftChapterObject != null) ENABLED_BUTTON_IMAGE_ALPHA else DISABLED_BUTTON_IMAGE_ALPHA
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binding.rightChapter.isEnabled = rightChapterObject != null
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binding.rightChapter.imageAlpha = if (rightChapterObject != null) ENABLED_BUTTON_IMAGE_ALPHA else DISABLED_BUTTON_IMAGE_ALPHA
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}
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// Invalidate menu to show proper chapter bookmark state
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invalidateOptionsMenu()
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}
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