app-ethereum/src/eth_plugin_ui.c

#include "shared_context.h"
#ifdef HAVE_UX_FLOW
#include "ui_flow.h"
#endif
#include "ui_callbacks.h"
#include "eth_plugin_handler.h"

typedef enum {

	PLUGIN_UI_INSIDE = 0,
	PLUGIN_UI_OUTSIDE

} plugin_ui_state_t;

void computeFees(char *displayBuffer, uint32_t displayBufferSize);

void plugin_ui_get_id() {
	ethQueryContractID_t pluginQueryContractID;	
	eth_plugin_prepare_query_contract_ID(&pluginQueryContractID, strings.tmp.tmp, sizeof(strings.tmp.tmp), strings.tmp.tmp2, sizeof(strings.tmp.tmp2));
	// Query the original contract for ID if it's not an internal alias
	 if (!eth_plugin_call(
	 	(dataContext.tokenContext.pluginName[0] == '-' ? NULL : tmpContent.txContent.destination), 
	 	ETH_PLUGIN_QUERY_CONTRACT_ID, (void*)&pluginQueryContractID)) {
	 	PRINTF("Plugin query contract ID call failed\n");
	 	io_seproxyhal_touch_tx_cancel(NULL);
	 }	
}

void plugin_ui_get_item() {
	ethQueryContractUI_t pluginQueryContractUI;
	eth_plugin_prepare_query_contract_UI(&pluginQueryContractUI, dataContext.tokenContext.pluginUiCurrentItem, strings.tmp.tmp, sizeof(strings.tmp.tmp), strings.tmp.tmp2, sizeof(strings.tmp.tmp2));
	 if (!eth_plugin_call(NULL, ETH_PLUGIN_QUERY_CONTRACT_UI, (void*)&pluginQueryContractUI)) {
	 	PRINTF("Plugin query contract UI call failed\n");
	 	io_seproxyhal_touch_tx_cancel(NULL);
	 }		
}

void display_next_plugin_item(bool entering) {
  if (entering) {
    if (dataContext.tokenContext.pluginUiState == PLUGIN_UI_OUTSIDE) {
      dataContext.tokenContext.pluginUiState = PLUGIN_UI_INSIDE;
      dataContext.tokenContext.pluginUiCurrentItem = 0;
      plugin_ui_get_item();
      ux_flow_next();
    }
    else {
      if (dataContext.tokenContext.pluginUiCurrentItem > 0) {
        dataContext.tokenContext.pluginUiCurrentItem--;
        plugin_ui_get_item();
        ux_flow_next();
      }
      else {
        dataContext.tokenContext.pluginUiState = PLUGIN_UI_OUTSIDE;
        dataContext.tokenContext.pluginUiCurrentItem = 0;
        ux_flow_prev();        
      }
    }
  }
  else {
    if (dataContext.tokenContext.pluginUiState == PLUGIN_UI_OUTSIDE) {
      dataContext.tokenContext.pluginUiState = PLUGIN_UI_INSIDE;
      plugin_ui_get_item();
      ux_flow_prev();	 
    }
    else {
      if (dataContext.tokenContext.pluginUiCurrentItem < dataContext.tokenContext.pluginUiMaxItems - 1) {
        dataContext.tokenContext.pluginUiCurrentItem++;
        plugin_ui_get_item();
        ux_flow_prev();        
        // Reset multi page layout to the first page
        G_ux.layout_paging.current = 0;
        #ifdef TARGET_NANOS
        ux_layout_paging_redisplay(G_ux.stack_count-1);
        #else
        ux_layout_bnnn_paging_redisplay(0);
        #endif
      }
      else {
        dataContext.tokenContext.pluginUiState = PLUGIN_UI_OUTSIDE;
        ux_flow_next();
      }
    }
  }
}

void plugin_ui_compute_fees() {
	computeFees(strings.common.maxFee, sizeof(strings.common.maxFee));
}

UX_FLOW_DEF_NOCB(
		ux_plugin_approval_intro_step,
    pnn,
    {
      &C_icon_eye,
      "Review",
      "contract call",
    });

UX_STEP_NOCB_INIT(
  ux_plugin_approval_id_step,
  bnnn_paging,
  plugin_ui_get_id(),
  {
    .title = strings.tmp.tmp,
    .text = strings.tmp.tmp2
  });

UX_STEP_INIT(
  ux_plugin_approval_before_step,
  NULL,
  NULL,
  {
    display_next_plugin_item(true);
  });

UX_FLOW_DEF_NOCB(
  ux_plugin_approval_display_step,
  bnnn_paging,
  {
    .title = strings.tmp.tmp,
    .text = strings.tmp.tmp2
  });

UX_STEP_INIT(
  ux_plugin_approval_after_step,
  NULL,
  NULL,
  {
    display_next_plugin_item(false);
  });

UX_STEP_NOCB_INIT(
  ux_plugin_approval_fees_step,
  bnnn_paging,
  plugin_ui_compute_fees(),
  {
    .title = "Max Fees",
    .text = strings.common.maxFee
  });

UX_FLOW_DEF_VALID(
    ux_plugin_approval_ok_step,
    pbb,
    io_seproxyhal_touch_tx_ok(NULL),
    {
      &C_icon_validate_14,
      "Accept",
      "and send",
    });
UX_FLOW_DEF_VALID(
    ux_plugin_approval_cancel_step,
    pb,
    io_seproxyhal_touch_tx_cancel(NULL),
    {
      &C_icon_crossmark,
      "Reject",
    });

UX_FLOW(
  ux_plugin_approval_flow,
  &ux_plugin_approval_intro_step,
  &ux_plugin_approval_id_step,
  &ux_plugin_approval_before_step,
  &ux_plugin_approval_display_step,
  &ux_plugin_approval_after_step,
  &ux_plugin_approval_fees_step,
  &ux_plugin_approval_ok_step,
  &ux_plugin_approval_cancel_step
);

void plugin_ui_start() {
	dataContext.tokenContext.pluginUiState = PLUGIN_UI_OUTSIDE;
	dataContext.tokenContext.pluginUiCurrentItem = 0;
	ux_flow_init(0, ux_plugin_approval_flow, NULL);
}