Merge lp:~widelands-dev/widelands/bug-1808169-disable-focus into lp:widelands

[Notabilis]

Allowing hotkey usage while windows are open.

Allowing to use arrow keys while windows (e.g., ware statistics) are open.

Changed two points:
- The UI::Panel no longer grabs the keyboard focus when it is clicked but shouldn't grab it
- Some components (buttons, slider, checkbox) no longer accept the keyboard focus. I don't know why they ever did so, though. It possibly was connected to the Panel being able to switch between components with the Tab key. But since nearly no component handles any keys, I guess it is no (big) loss. But still my main problem with this merge request is: Does someone knows about or finds a functionality that breaks due to the no longer applied keyboard focus?

[bunnybot (widelandsofficial)]

Continuous integration builds have changed state:

Travis build 4347. State: failed. Details: https://travis-ci.org/widelands/widelands/builds/469721440.
Appveyor build 4141. State: failed. Details: https://ci.appveyor.com/project/widelands-dev/widelands/build/_widelands_dev_widelands_bug_1808169_disable_focus-4141.

[GunChleoc (gunchleoc)]

I don't see a problem with how things are now. We will need to reconsider this though if we want to implement full keyboard navigation, e.g. tab through checkboxes and activate/deactivate them by hitting the space bar.

[bunnybot (widelandsofficial)]

Continuous integration builds have changed state:

Travis build 4365. State: errored. Details: https://travis-ci.org/widelands/widelands/builds/472186290.
Appveyor build 4158. State: success. Details: https://ci.appveyor.com/project/widelands-dev/widelands/build/_widelands_dev_widelands_bug_1808169_disable_focus-4158.

[bunnybot (widelandsofficial)]

Continuous integration builds have changed state:

Travis build 4404. State: failed. Details: https://travis-ci.org/widelands/widelands/builds/479143097.
Appveyor build 4195. State: success. Details: https://ci.appveyor.com/project/widelands-dev/widelands/build/_widelands_dev_widelands_bug_1808169_disable_focus-4195.

[Toni Förster (stonerl)]

Can this be merged? I tested this and found no issues.

review: Approve (played)

[GunChleoc (gunchleoc)]

Let's have it. We can always revisit it whenever we get around to implementing more keyboard navigation.

@bunnybot merge

[bunnybot (widelandsofficial)]

Refusing to merge, since Travis is not green. Use @bunnybot merge force for merging anyways.

Travis build 4404. State: failed. Details: https://travis-ci.org/widelands/widelands/builds/479143097.

[Toni Förster (stonerl)]

Again a Travis hiccup.

@bunnybot merge force

=== modified file 'src/ui_basic/button.cc'
--- src/ui_basic/button.cc	2018-12-13 07:24:01 +0000
+++ src/ui_basic/button.cc	2019-01-13 20:25:18 +0000
@@ -60,7 +60,8 @@
      title_image_(title_image),
      background_style_(g_gr->styles().button_style(init_style)) {
 	set_thinks(false);
-	set_can_focus(true);
+	// Don't allow focus
+	assert(!get_can_focus());
 }
 
 Button::Button  //  for textual buttons. If h = 0, h will resize according to the font's height.
@@ -143,8 +144,6 @@
 	if (enabled_ == on)
 		return;
 
-	set_can_focus(on);
-
 	// disabled buttons should look different...
 	if (on)
 		enabled_ = true;
@@ -316,7 +315,6 @@
 		return false;
 
 	if (enabled_) {
-		focus();
 		grab_mouse(true);
 		pressed_ = true;
 		if (repeating_) {
 
=== modified file 'src/ui_basic/checkbox.cc'
--- src/ui_basic/checkbox.cc	2018-12-13 07:24:01 +0000
+++ src/ui_basic/checkbox.cc	2019-01-13 20:25:18 +0000
@@ -50,7 +50,6 @@
 	uint16_t h = pic->height();
 	set_desired_size(w, h);
 	set_size(w, h);
-	set_can_focus(true);
 	set_flags(Has_Custom_Picture, true);
 }
 
@@ -98,7 +97,6 @@
  * Args: enabled  true if the checkbox should be enabled, false otherwise
  */
 void Statebox::set_enabled(bool const enabled) {
-	set_can_focus(enabled);
 	if (((flags_ & Is_Enabled) > 1) && enabled)
 		return;
 
@@ -177,7 +175,6 @@
  */
 bool Statebox::handle_mousepress(const uint8_t btn, int32_t, int32_t) {
 	if (btn == SDL_BUTTON_LEFT && (flags_ & Is_Enabled)) {
-		focus();
 		clicked();
 		return true;
 	}
 
=== modified file 'src/ui_basic/panel.cc'
--- src/ui_basic/panel.cc	2018-12-13 07:24:01 +0000
+++ src/ui_basic/panel.cc	2019-01-13 20:25:18 +0000
@@ -528,7 +528,7 @@
  * \return true if the mouseclick was processed, false otherwise
  */
 bool Panel::handle_mousepress(const uint8_t btn, int32_t, int32_t) {
-	if (btn == SDL_BUTTON_LEFT) {
+	if (btn == SDL_BUTTON_LEFT && get_can_focus()) {
 		focus();
 	}
 	return false;
 
=== modified file 'src/ui_basic/slider.cc'
--- src/ui_basic/slider.cc	2018-12-13 07:24:01 +0000
+++ src/ui_basic/slider.cc	2019-01-13 20:25:18 +0000
@@ -78,7 +78,7 @@
      bar_size_(bar_size),
      cursor_size_(cursor_size) {
 	set_thinks(false);
-	set_can_focus(true);
+	assert(!get_can_focus());
 	calculate_cursor_position();
 }
 
@@ -205,7 +205,6 @@
 	if (enabled_ == enabled)
 		return;
 
-	set_can_focus(enabled);
 	enabled_ = enabled;
 	if (!enabled) {
 		pressed_ = false;
@@ -402,7 +401,6 @@
 	if (btn != SDL_BUTTON_LEFT)
 		return false;
 
-	focus();
 	if (x >= cursor_pos_ && x <= cursor_pos_ + cursor_size_) {
 		//  click on cursor
 		cursor_pressed(x);
@@ -469,7 +467,6 @@
 	if (btn != SDL_BUTTON_LEFT)
 		return false;
 
-	focus();
 	if (y >= cursor_pos_ && y <= cursor_pos_ + cursor_size_) {
 		//  click on cursor
 		cursor_pressed(y);