1 /*
2  * Copyright (C) 2014 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #include "recovery_ui/wear_ui.h"
18 
19 #include <string.h>
20 
21 #include <string>
22 #include <vector>
23 
24 #include <android-base/properties.h>
25 #include <android-base/strings.h>
26 #include <minui/minui.h>
27 
28 constexpr int kDefaultProgressBarBaseline = 259;
29 constexpr int kDefaultMenuUnusableRows = 9;
30 
WearRecoveryUI()31 WearRecoveryUI::WearRecoveryUI()
32     : ScreenRecoveryUI(true),
33       progress_bar_baseline_(android::base::GetIntProperty("ro.recovery.ui.progress_bar_baseline",
34                                                            kDefaultProgressBarBaseline)),
35       menu_unusable_rows_(android::base::GetIntProperty("ro.recovery.ui.menu_unusable_rows",
36                                                         kDefaultMenuUnusableRows)) {
37   // TODO: menu_unusable_rows_ should be computed based on the lines in draw_screen_locked().
38 
39   touch_screen_allowed_ = true;
40 }
41 
GetProgressBaseline() const42 int WearRecoveryUI::GetProgressBaseline() const {
43   return progress_bar_baseline_;
44 }
45 
46 // Draw background frame on the screen.  Does not flip pages.
47 // Should only be called with updateMutex locked.
48 // TODO merge drawing routines with screen_ui
draw_background_locked()49 void WearRecoveryUI::draw_background_locked() {
50   pagesIdentical = false;
51   gr_color(0, 0, 0, 255);
52   gr_fill(0, 0, gr_fb_width(), gr_fb_height());
53 
54   if (current_icon_ != NONE) {
55     const auto& frame = GetCurrentFrame();
56     int frame_width = gr_get_width(frame);
57     int frame_height = gr_get_height(frame);
58     int frame_x = (gr_fb_width() - frame_width) / 2;
59     int frame_y = (gr_fb_height() - frame_height) / 2;
60     gr_blit(frame, 0, 0, frame_width, frame_height, frame_x, frame_y);
61 
62     // Draw recovery text on screen above progress bar.
63     const auto& text = GetCurrentText();
64     int text_x = (ScreenWidth() - gr_get_width(text)) / 2;
65     int text_y = GetProgressBaseline() - gr_get_height(text) - 10;
66     gr_color(255, 255, 255, 255);
67     gr_texticon(text_x, text_y, text);
68   }
69 }
70 
draw_screen_locked()71 void WearRecoveryUI::draw_screen_locked() {
72   draw_background_locked();
73   if (!show_text) {
74     draw_foreground_locked();
75   } else {
76     SetColor(UIElement::TEXT_FILL);
77     gr_fill(0, 0, gr_fb_width(), gr_fb_height());
78 
79     // clang-format off
80     static std::vector<std::string> SWIPE_HELP = {
81       "Swipe up/down to move.",
82       "Swipe left/right to select.",
83       "",
84     };
85     // clang-format on
86     draw_menu_and_text_buffer_locked(SWIPE_HELP);
87   }
88 }
89 
90 // TODO merge drawing routines with screen_ui
update_progress_locked()91 void WearRecoveryUI::update_progress_locked() {
92   draw_screen_locked();
93   gr_flip();
94 }
95 
SetStage(int,int)96 void WearRecoveryUI::SetStage(int /* current */, int /* max */) {}
97 
CreateMenu(const std::vector<std::string> & text_headers,const std::vector<std::string> & text_items,size_t initial_selection) const98 std::unique_ptr<Menu> WearRecoveryUI::CreateMenu(const std::vector<std::string>& text_headers,
99                                                  const std::vector<std::string>& text_items,
100                                                  size_t initial_selection) const {
101   if (text_rows_ > 0 && text_cols_ > 0) {
102     return std::make_unique<TextMenu>(scrollable_menu_, text_rows_ - menu_unusable_rows_ - 1,
103                                       text_cols_ - 1, text_headers, text_items, initial_selection,
104                                       char_height_, *this);
105   }
106 
107   return nullptr;
108 }
109