Support open in notepad from fileman (#1052)

* Support open in notepad from fileman
* Align Filename Exit button with UI

firmware/application/apps/ui_fileman.cpp

@@ -26,6 +26,7 @@
 
 #include <algorithm>
 #include "ui_fileman.hpp"
+#include "ui_text_editor.hpp"
 #include "string_format.hpp"
 #include "portapack.hpp"
 #include "event_m0.hpp"
@@ -510,16 +511,19 @@ FileManagerView::FileManagerView(
         refresh_widgets(v);
     };
 
-    add_children({&menu_view,
-                  &labels,
-                  &text_date,
-                  &button_rename,
-                  &button_delete,
-                  &button_cut,
-                  &button_copy,
-                  &button_paste,
-                  &button_new_dir,
-                  &button_new_file});
+    add_children({
+        &menu_view,
+        &labels,
+        &text_date,
+        &button_rename,
+        &button_delete,
+        &button_cut,
+        &button_copy,
+        &button_paste,
+        &button_new_dir,
+        &button_new_file,
+        &button_open_notepad,
+    });
 
     menu_view.on_highlight = [this]() {
         if (selected_is_valid())
@@ -578,6 +582,14 @@ FileManagerView::FileManagerView(
     button_new_file.on_select = [this]() {
         on_new_file();
     };
+
+    button_open_notepad.on_select = [this]() {
+        if (selected_is_valid() && !get_selected_entry().is_directory) {
+            auto path = get_selected_full_path();
+            nav_.replace<TextEditorView>(path);
+        } else
+            nav_.display_modal("Open in Notepad", "Can't open that in Notepad.");
+    };
 }
 
 }  // namespace ui

firmware/application/apps/ui_fileman.hpp

@@ -121,7 +121,7 @@ class FileManBaseView : public View {
         ""};
 
     Button button_exit{
-        {21 * 8, 34 * 8, 9 * 8, 32},
+        {22 * 8, 34 * 8, 9 * 8, 32},
         "Exit"};
 };
 
@@ -264,6 +264,12 @@ class FileManagerView : public FileManBaseView {
         {},
         &bitmap_icon_new_file,
         Color::green()};
+
+    NewButton button_open_notepad{
+        {0 * 8, 34 * 8, 4 * 8, 32},
+        {},
+        &bitmap_icon_notepad,
+        Color::orange()};
 };
 
 } /* namespace ui */

firmware/application/apps/ui_text_editor.cpp

@@ -268,13 +268,18 @@ TextEditorView::TextEditorView(NavigationView& nav)
     set_focusable(true);
 
     button_open.on_select = [this](Button&) {
-        auto open_view = nav_.push<FileLoadView>(".TXT");
+        auto open_view = nav_.push<FileLoadView>("");
         open_view->on_changed = [this](std::filesystem::path path) {
             open_file(path);
         };
     };
 }
 
+TextEditorView::TextEditorView(NavigationView& nav, const fs::path& path)
+    : TextEditorView(nav) {
+    open_file(path);
+}
+
 void TextEditorView::on_focus() {
     refresh_ui();
     button_open.focus();
@@ -366,6 +371,20 @@ bool TextEditorView::apply_scrolling_constraints(int16_t delta_line, int16_t del
         ++new_line;
     }
 
+    // Snap to first/last to make navigating easier.
+    if (new_line < 0 && new_col > 0) {
+        new_line = 0;
+        new_col = 0;
+    } else if (new_line >= (int32_t)file_.line_count()) {
+        auto last_line = file_.line_count() - 1;
+        int32_t last_col = file_.line_length(last_line) - 1;
+
+        if (new_col < last_col) {
+            new_line = last_line;
+            new_col = last_col;
+        }
+    }
+
     if (new_line < 0 || (uint32_t)new_line >= file_.line_count())
         return false;
 

firmware/application/apps/ui_text_editor.hpp

@@ -110,6 +110,9 @@ class FileWrapper {
 class TextEditorView : public View {
    public:
     TextEditorView(NavigationView& nav);
+    TextEditorView(
+        NavigationView& nav,
+        const std::filesystem::path& path);
 
     std::string title() const override {
         return "Notepad";