4 files changed, 37 insertions, 11 deletions

diff --git a/indra/llui/llbutton.cpp b/indra/llui/llbutton.cpp
index 0e59fdf519..8028f397f3 100644
--- a/indra/llui/llbutton.cpp
+++ b/indra/llui/llbutton.cpp
@@ -102,6 +102,7 @@ LLButton::Params::Params()
 	scale_image("scale_image", true),
 	hover_glow_amount("hover_glow_amount"),
 	commit_on_return("commit_on_return", true),
+    commit_on_capture_lost("commit_on_capture_lost", false),
 	display_pressed_state("display_pressed_state", true),
 	use_draw_context_alpha("use_draw_context_alpha", true),
 	badge("badge"),
@@ -165,6 +166,7 @@ LLButton::LLButton(const LLButton::Params& p)
 	mBottomVPad(p.pad_bottom),
 	mHoverGlowStrength(p.hover_glow_amount),
 	mCommitOnReturn(p.commit_on_return),
+    mCommitOnCaptureLost(p.commit_on_capture_lost),
 	mFadeWhenDisabled(FALSE),
 	mForcePressedState(false),
 	mDisplayPressedState(p.display_pressed_state),
@@ -475,6 +477,10 @@ BOOL LLButton::handleMouseUp(S32 x, S32 y, MASK mask)
 	// We only handle the click if the click both started and ended within us
 	if( hasMouseCapture() )
 	{
+        // reset timers before focus change, to not cause
+        // additional commits if mCommitOnCaptureLost.
+        resetMouseDownTimer();
+
 		// Always release the mouse
 		gFocusMgr.setMouseCapture( NULL );
 
@@ -489,8 +495,6 @@ BOOL LLButton::handleMouseUp(S32 x, S32 y, MASK mask)
 		// Regardless of where mouseup occurs, handle callback
 		if(mMouseUpSignal) (*mMouseUpSignal)(this, LLSD());
 
-		resetMouseDownTimer();
-
 		// DO THIS AT THE VERY END to allow the button to be destroyed as a result of being clicked.
 		// If mouseup in the widget, it's been clicked
 		if (pointInView(x, y))
@@ -1195,6 +1199,18 @@ void LLButton::setImageOverlay(const LLUUID& image_id, LLFontGL::HAlign alignmen
 
 void LLButton::onMouseCaptureLost()
 {
+    if (mCommitOnCaptureLost
+        && mMouseDownTimer.getStarted())
+    {
+        if (mMouseUpSignal) (*mMouseUpSignal)(this, LLSD());
+
+        if (mIsToggle)
+        {
+            toggleState();
+        }
+
+        LLUICtrl::onCommit();
+    }
 	resetMouseDownTimer();
 }
 
diff --git a/indra/llui/llbutton.h b/indra/llui/llbutton.h
index 572d36996c..ccd31e90c0 100644
--- a/indra/llui/llbutton.h
+++ b/indra/llui/llbutton.h
@@ -124,6 +124,7 @@ public:
 		Optional<bool>			is_toggle,
 								scale_image,
 								commit_on_return,
+								commit_on_capture_lost,
 								display_pressed_state;
 		
 		Optional<F32>				hover_glow_amount;
@@ -374,6 +375,7 @@ protected:
 	F32							mCurGlowStrength;
 
 	bool						mCommitOnReturn;
+    bool						mCommitOnCaptureLost;
 	bool						mFadeWhenDisabled;
 	bool						mForcePressedState;
 	bool						mDisplayPressedState;
diff --git a/indra/llui/llprogressbar.cpp b/indra/llui/llprogressbar.cpp
index 209796565c..cf57b1fe76 100644
--- a/indra/llui/llprogressbar.cpp
+++ b/indra/llui/llprogressbar.cpp
@@ -69,16 +69,22 @@ void LLProgressBar::draw()
 	static LLTimer timer;
 	F32 alpha = getDrawContext().mAlpha;
 	
-	LLColor4 image_bar_color = mColorBackground.get();
-	image_bar_color.setAlpha(alpha);
-	mImageBar->draw(getLocalRect(), image_bar_color);
+    if (mImageBar) // optional according to parameters
+    {
+        LLColor4 image_bar_color = mColorBackground.get();
+        image_bar_color.setAlpha(alpha);
+        mImageBar->draw(getLocalRect(), image_bar_color);
+    }
 
-	alpha *= 0.5f + 0.5f*0.5f*(1.f + (F32)sin(3.f*timer.getElapsedTimeF32()));
-	LLColor4 bar_color = mColorBar.get();
-	bar_color.mV[VALPHA] *= alpha; // modulate alpha
-	LLRect progress_rect = getLocalRect();
-	progress_rect.mRight = ll_round(getRect().getWidth() * (mPercentDone / 100.f));
-	mImageFill->draw(progress_rect, bar_color);
+    if (mImageFill)
+    {
+        alpha *= 0.5f + 0.5f*0.5f*(1.f + (F32)sin(3.f*timer.getElapsedTimeF32()));
+        LLColor4 bar_color = mColorBar.get();
+        bar_color.mV[VALPHA] *= alpha; // modulate alpha
+        LLRect progress_rect = getLocalRect();
+        progress_rect.mRight = ll_round(getRect().getWidth() * (mPercentDone / 100.f));
+        mImageFill->draw(progress_rect, bar_color);
+    }
 }
 
 void LLProgressBar::setValue(const LLSD& value)
diff --git a/indra/llui/llspinctrl.cpp b/indra/llui/llspinctrl.cpp
index ee78b82429..ef7c8ec012 100644
--- a/indra/llui/llspinctrl.cpp
+++ b/indra/llui/llspinctrl.cpp
@@ -103,6 +103,7 @@ LLSpinCtrl::LLSpinCtrl(const LLSpinCtrl::Params& p)
 	up_button_params.rect = LLRect(btn_left, getRect().getHeight(), btn_right, getRect().getHeight() - spinctrl_btn_height);
 	up_button_params.click_callback.function(boost::bind(&LLSpinCtrl::onUpBtn, this, _2));
 	up_button_params.mouse_held_callback.function(boost::bind(&LLSpinCtrl::onUpBtn, this, _2));
+    up_button_params.commit_on_capture_lost = true;
 
 	mUpBtn = LLUICtrlFactory::create<LLButton>(up_button_params);
 	addChild(mUpBtn);
@@ -111,6 +112,7 @@ LLSpinCtrl::LLSpinCtrl(const LLSpinCtrl::Params& p)
 	down_button_params.rect = LLRect(btn_left, getRect().getHeight() - spinctrl_btn_height, btn_right, getRect().getHeight() - 2 * spinctrl_btn_height);
 	down_button_params.click_callback.function(boost::bind(&LLSpinCtrl::onDownBtn, this, _2));
 	down_button_params.mouse_held_callback.function(boost::bind(&LLSpinCtrl::onDownBtn, this, _2));
+    down_button_params.commit_on_capture_lost = true;
 	mDownBtn = LLUICtrlFactory::create<LLButton>(down_button_params);
 	addChild(mDownBtn);