diff options
Diffstat (limited to 'src/main/java')
| -rw-r--r-- | src/main/java/de/pixart/messenger/ui/widget/ListSelectionManager.java | 142 |
1 files changed, 71 insertions, 71 deletions
diff --git a/src/main/java/de/pixart/messenger/ui/widget/ListSelectionManager.java b/src/main/java/de/pixart/messenger/ui/widget/ListSelectionManager.java index 5ac6f9134..eb2136b78 100644 --- a/src/main/java/de/pixart/messenger/ui/widget/ListSelectionManager.java +++ b/src/main/java/de/pixart/messenger/ui/widget/ListSelectionManager.java @@ -18,7 +18,9 @@ public class ListSelectionManager { private static final int MESSAGE_SEND_RESET = 1; private static final int MESSAGE_RESET = 2; private static final int MESSAGE_START_SELECTION = 3; - + private static final Field FIELD_EDITOR; + private static final Method METHOD_START_SELECTION; + private static final boolean SUPPORTED; private static final Handler HANDLER = new Handler(Looper.getMainLooper(), new Handler.Callback() { @Override @@ -45,30 +47,58 @@ public class ListSelectionManager { } }); - private static class StartSelectionHolder { - - public final ListSelectionManager listSelectionManager; - public final TextView textView; - public final int start; - public final int end; - - public StartSelectionHolder(ListSelectionManager listSelectionManager, TextView textView, - int start, int end) { - this.listSelectionManager = listSelectionManager; - this.textView = textView; - this.start = start; - this.end = end; + static { + Field editor; + try { + editor = TextView.class.getDeclaredField("mEditor"); + editor.setAccessible(true); + } catch (Exception e) { + editor = null; + } + FIELD_EDITOR = editor; + Method startSelection = null; + if (editor != null) { + String[] startSelectionNames = {"startSelectionActionMode", "startSelectionActionModeWithSelection"}; + for (String startSelectionName : startSelectionNames) { + try { + startSelection = editor.getType().getDeclaredMethod(startSelectionName); + startSelection.setAccessible(true); + break; + } catch (Exception e) { + startSelection = null; + } + } } + METHOD_START_SELECTION = startSelection; + SUPPORTED = FIELD_EDITOR != null && METHOD_START_SELECTION != null; } private ActionMode selectionActionMode; private Object selectionIdentifier; private TextView selectionTextView; - private Object futureSelectionIdentifier; private int futureSelectionStart; private int futureSelectionEnd; + public static boolean isSupported() { + return SUPPORTED; + } + + private static void startSelection(TextView textView, int start, int end) { + final CharSequence text = textView.getText(); + if (SUPPORTED && start >= 0 && end > start && textView.isTextSelectable() && text instanceof Spannable) { + final Spannable spannable = (Spannable) text; + start = Math.min(start, spannable.length()); + end = Math.min(end, spannable.length()); + Selection.setSelection(spannable, start, end); + try { + final Object editor = FIELD_EDITOR != null ? FIELD_EDITOR.get(textView) : textView; + METHOD_START_SELECTION.invoke(editor); + } catch (Exception e) { + } + } + } + public void onCreate(TextView textView, ActionMode.Callback additionalCallback) { final CustomCallback callback = new CustomCallback(textView, additionalCallback); textView.setCustomSelectionActionModeCallback(callback); @@ -76,11 +106,14 @@ public class ListSelectionManager { public void onUpdate(TextView textView, Object identifier) { if (SUPPORTED) { - CustomCallback callback = (CustomCallback) textView.getCustomSelectionActionModeCallback(); - callback.identifier = identifier; - if (futureSelectionIdentifier == identifier) { - HANDLER.obtainMessage(MESSAGE_START_SELECTION, new StartSelectionHolder(this, - textView, futureSelectionStart, futureSelectionEnd)).sendToTarget(); + final ActionMode.Callback callback = textView.getCustomSelectionActionModeCallback(); + if (callback instanceof CustomCallback) { + final CustomCallback customCallback = (CustomCallback) textView.getCustomSelectionActionModeCallback(); + customCallback.identifier = identifier; + if (futureSelectionIdentifier == identifier) { + HANDLER.obtainMessage(MESSAGE_START_SELECTION, new StartSelectionHolder(this, + textView, futureSelectionStart, futureSelectionEnd)).sendToTarget(); + } } } } @@ -109,13 +142,29 @@ public class ListSelectionManager { } } + private static class StartSelectionHolder { + + final ListSelectionManager listSelectionManager; + final TextView textView; + public final int start; + public final int end; + + StartSelectionHolder(ListSelectionManager listSelectionManager, TextView textView, + int start, int end) { + this.listSelectionManager = listSelectionManager; + this.textView = textView; + this.start = start; + this.end = end; + } + } + private class CustomCallback implements ActionMode.Callback { private final TextView textView; private final ActionMode.Callback additionalCallback; - public Object identifier; + Object identifier; - public CustomCallback(TextView textView, ActionMode.Callback additionalCallback) { + CustomCallback(TextView textView, ActionMode.Callback additionalCallback) { this.textView = textView; this.additionalCallback = additionalCallback; } @@ -159,53 +208,4 @@ public class ListSelectionManager { } } } - - private static final Field FIELD_EDITOR; - private static final Method METHOD_START_SELECTION; - private static final boolean SUPPORTED; - - static { - Field editor; - try { - editor = TextView.class.getDeclaredField("mEditor"); - editor.setAccessible(true); - } catch (Exception e) { - editor = null; - } - FIELD_EDITOR = editor; - Method startSelection = null; - if (editor != null) { - String[] startSelectionNames = {"startSelectionActionMode", "startSelectionActionModeWithSelection"}; - for (String startSelectionName : startSelectionNames) { - try { - startSelection = editor.getType().getDeclaredMethod(startSelectionName); - startSelection.setAccessible(true); - break; - } catch (Exception e) { - startSelection = null; - } - } - } - METHOD_START_SELECTION = startSelection; - SUPPORTED = FIELD_EDITOR != null && METHOD_START_SELECTION != null; - } - - public static boolean isSupported() { - return SUPPORTED; - } - - public static void startSelection(TextView textView, int start, int end) { - final CharSequence text = textView.getText(); - if (SUPPORTED && start >= 0 && end > start && textView.isTextSelectable() && text instanceof Spannable) { - final Spannable spannable = (Spannable) text; - start = Math.min(start, spannable.length()); - end = Math.min(end, spannable.length()); - Selection.setSelection(spannable, start, end); - try { - final Object editor = FIELD_EDITOR != null ? FIELD_EDITOR.get(textView) : textView; - METHOD_START_SELECTION.invoke(editor); - } catch (Exception e) { - } - } - } }
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