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Do not send mouse clicks out of range (fixes #501)

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This commit is contained in:
Fredrik Fornwall
2017-12-09 00:58:31 +01:00
parent 50f66a12da
commit f802d6001d
2 changed files with 14 additions and 1 deletions
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7
terminal-emulator/src/main/java/com/termux/terminal/TerminalEmulator.java
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@@ -301,6 +301,11 @@ public final class TerminalEmulator {
* @param mouseButton one of the MOUSE_* constants of this class.
*/
public void sendMouseEvent(int mouseButton, int column, int row, boolean pressed) {
if (column < 1) column = 1;
if (column > mColumns) column = mColumns;
if (row < 1) row = 1;
if (row > mRows) row = mRows;
if (mouseButton == MOUSE_LEFT_BUTTON_MOVED && !isDecsetInternalBitSet(DECSET_BIT_MOUSE_TRACKING_BUTTON_EVENT)) {
// Do not send tracking.
} else if (isDecsetInternalBitSet(DECSET_BIT_MOUSE_PROTOCOL_SGR)) {
@@ -308,7 +313,7 @@ public final class TerminalEmulator {
} else {
mouseButton = pressed ? mouseButton : 3; // 3 for release of all buttons.
// Clip to screen, and clip to the limits of 8-bit data.
boolean out_of_bounds = column < 1 || row < 1 || column > mColumns || row > mRows || column > 255 - 32 || row > 255 - 32;
boolean out_of_bounds = column > 255 - 32 || row > 255 - 32;
if (!out_of_bounds) {
byte[] data = {'\033', '[', 'M', (byte) (32 + mouseButton), (byte) (32 + column), (byte) (32 + row)};
mSession.write(data, 0, data.length);